People say Sonic Unleashed is Sonic's last chance to make the Sonic fans happy, or Sonic will phail forever. I'm a huge Sonic fan and love every Sonic game. Even Shadow the Hedgehog and Sonic the Hedgehog 2006

Look this from Nintendo World (Brazillian magazine) : (sry for the bad translation)

"The hedgehog came back with power and strenght - like in the good 16bits era. SEGA (...) made a game with all elements we like from Sonic adventures: collect rings, destroy enemies, run through many courses with many loopinhs and obstacles and do incredible jumps".